Car cost calculators
Two kinds of tools. Car costs by state uses each state's own tax rules and fees, with the source and check date behind every figure. Car financing works the same in every state: it turns a price into payments, compares a lease with a loan, and checks whether a refinance pays off. Every formula is on our methodology page.
Car costs by state
- Sales tax calculatorState and local tax, trade-in credit and rebates.
- Out-the-door price calculatorThe full amount with doc, title and registration fees.
- Car cost by stateTax, title and registration on a $30,000 car, ranked.
- Sales tax by stateEvery state ranked, lowest tax to highest.
- Doc fees by stateWhich states cap the dealer's paperwork fee.
- Trade-in tax creditWhere a trade-in lowers the tax, and how rebates are taxed.
- Title and registration feesGovernment fees for a passenger car in each state.
Car financing
- Auto loan calculatorMonthly payment, total interest and yearly schedule.
- Car affordabilityThe car price a monthly budget or income covers, after tax and fees.
- Lease vs buyWhat each costs over the same months, side by side.
- Auto refinanceNew payment, savings after fees and when they pay off.
- Loan interest deductionThe federal deduction for car loan interest, 2025 to 2028.